This one has a smaller core than a RBMK so it was cheap enough to have a containment shell that the Soviets were willing to pay for one. https://en.wikipedia.o

This one has a smaller core than a RBMK so it was cheap enough to have a containment shell that the Soviets were willing to pay for one. https://en.wikipedia.org/wiki/VVER#Safety_barriers https://en.wikipedia.org/wiki/VVER#Safety_barriers